pgsql: Fix pg_dump for recent change removing separate RULE privilege.

Log Message:
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Fix pg_dump for recent change removing separate RULE privilege.
I had thought this code could be left alone, but I was wrong: as-is
it's failing to recognize when to use ALL for table privileges in 8.2.

Modified Files:
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pgsql/src/bin/pg_dump:
dumputils.c (r1.30 -> r1.31)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/bin/pg_dump/dumputils.c.diff?r1=1.30&r2=1.31)